Breath TestsHelicobacter InfectionsHelicobacter pyloriLactuloseUreaCarbon IsotopesGastric EmptyingExhalationAminopyrineHydrogenCaprylatesLactose IntoleranceAnti-Ulcer AgentsCarbon DioxideDyspepsiaCarbon RadioisotopesOmeprazoleClarithromycinAmoxicillin2-PyridinylmethylsulfinylbenzimidazolesBismuthGastrointestinal TransitLactose Tolerance TestUreaseTinidazolePentanesMetronidazoleMalabsorption SyndromesChylomicron RemnantsBreath HoldingLansoprazoleLiver Function TestsFalse Negative ReactionsRespirationSensitivity and SpecificitySulfoxidesAcetamidesPeptic UlcerDuodenal UlcerRespiratory MechanicsDrug Therapy, CombinationIntestine, SmallVolatile Organic CompoundsGastroparesisLactoseFurazolidoneBlind Loop SyndromeAnti-Bacterial AgentsTidal VolumeRabeprazoleSpectrophotometry, InfraredIleocecal ValveMethaneRanitidineProton Pump InhibitorsGastroscopyStomachSpirulinaLoperamideEthaneMineral WatersDihydropyrimidine Dehydrogenase DeficiencyFecesExocrine Pancreatic InsufficiencyReproducibility of ResultsGastritisEndoscopy, GastrointestinalFlatulenceGastrointestinal MotilityPropanthelinePancreatinPhenolsulfonphthaleinSteatorrheaAntitrichomonal AgentsPulmonary VentilationGlutethimideTime FactorsIrritable Bowel SyndromeAcetoneDiphenoxylateVolatilizationIntestinal AbsorptionProspective StudiesHalitosisIntestinal DiseasesMucositisGastrointestinal AgentsChromatography, GasLiver CirrhosisAchlorhydriaInhalationMouthPancreatic ExtractsTriolein